Headworn Microphone

The Shure Beta Microphone Series BETA 54 is a subminiature, electret condenser headworn microphone. It provides uncompromised sound quality and reliability with minimal visibility in applications such as broadcast, theater, and touring. Despite the small size, the condenser element delivers full, clear, and natural reproduction of speech and vocals.

The microphone features a durable, low-profile wire frame headband which is fully adjustable for stability and comfort. A plastic carrying case protects the microphone and its accessories.

The BETA54 now features improved RF immunity against cellular and RF devices.

A wireless version is available as the WBH54.

→ Supercardioid polar pattern provides maximum gain-before-feedback and ambient rejection
→ Extended frequency response tailored for vocal performances
→ Able to handle extremely high sound pressure levels (SPL)
→ Snap-fit foam windscreens stay in place during intensive movement
→ Available with an in-line preamp or with a TA4F connector for wireless applications

Cartridge Type	Condenser (electret bias)
Frequency Response	50 to 20,000 Hz
Polar Pattern	Supercardioid
Output Noise (equivalent dBSPL, A-weighted)	39.0 dB typical; 42.0 dB maximum
Signal-to-Noise Ratio	55 dB at 94 dB SPL
Recommended Minimum Input Impedance	>1 kilohm
Preamp Output Impedance	136 ohms
Output Level, open circuit, ref. 1v/Pa at 1 kHz	-52.0 /- 3.0dB 2.51mV
Maximum Sound Pressure Level	149 dBSPL at 1% THD/1 kilohm load
Dynamic Range	110 dB (max. SPL with 1k load, minus typical A-wt. noise)
Current Drain	4.6 mA (preamp and microphone)
Output Polarity	Positive pressure on the diaphragm produces a positive voltage at= Pin 2 relative to pin 3 at the output connector of the preamp
Power Requirements	Phantom power; 11 to 52 Vdc positive on pins 2 and 3, return on pin 1 (ground)
Net Weight	135.35 g (4.75 oz.) microphone and in-line preamp
Cable	1.5 m (5 ft.), small-diameter, shielded, with mini 4-pin connector (TA4F)
WBH54	Choice of black or tan finish to suit your performance environment